CN205532640U - Elastic sealing pad for sealing seams among shield tunnel pipe segments - Google Patents
Elastic sealing pad for sealing seams among shield tunnel pipe segments Download PDFInfo
- Publication number
- CN205532640U CN205532640U CN201620083260.4U CN201620083260U CN205532640U CN 205532640 U CN205532640 U CN 205532640U CN 201620083260 U CN201620083260 U CN 201620083260U CN 205532640 U CN205532640 U CN 205532640U
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- sealing gasket
- groove
- shield tunnel
- sealed
- elastic sealing
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Abstract
The utility model discloses an elastic sealing pad for sealing seams among shield tunnel pipe segments, aim at providing one kind through absorbing water rubber and sealed combination of filling up and improve the through -hole shape and the design optimization that arranges, improve waterproof performance's elastic sealing pad for sealing seams among shield tunnel pipe segments, its technical scheme main points are: including setting up the sealed pad on the tunnel segment seam crossing, the sealed cross section that fills up sets up about the center pin symmetry, and the sealed one end of filling up is a pipe face contact surface for the sealed contact surface that fills up, the other end, and sealed stacking up is equipped with first recess and the second recess that is used for placing water expansion rubber, first recess set up in sealed fill up the contact surface on and transversally personally submit trapezoidal setting, the second recess sets up the both sides of following length direction in first recess.
Description
Technical field
The utility model relates to Tunnel Engineering technical field, more specifically, it relates to a kind of duct pieces of shield tunnel seam elastic sealing gasket.
Background technology
At present, shield tunnel many employings reinforced concrete segment lining cutting, the waterproof measure of segment joint is mostly important, and the countermeasure of usual seam waterproof is to use encapsulant, and the unexpansive synthetic rubber of main employing, by elastic densification, carrys out sealing with contact surface compression；The process that sealing gasket seals be rubber bodies under elastic recovering force effect, produce bigger deformation in contact surface, thus be filled with on contact surface on microcosmic rough and uneven in surface, stop liquid flowing in contact gap, reach the purpose sealed.
But owing to new built shield tunnel buried depth is gradually increased, require to improve constantly to the waterproof ability of elastic sealing gasket, therefore the requirement for elastic sealing gasket waterproof ability is more and more higher, simultaneously because for practice of construction and the consideration of safety of structure, the assembly force of elastic sealing gasket has and must is fulfilled for certain restriction.It is thus desirable to provide novel elastic sealing gasket form of fracture, the waterproof requirement of duct pieces of shield tunnel seam under high hydraulic pressure can be met, increase the sealing property on tunnel duct piece seam crossing, ensure that assembly force can meet construction and the duct pieces of shield tunnel seam elastic sealing gasket of design requirement simultaneously.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of by water sucting rubber and the combination of sealing gasket and improvement shape of through holes and the design optimization of arrangement, improves the duct pieces of shield tunnel seam elastic sealing gasket of water resistance.
For achieving the above object, the utility model provides following technical scheme:
A kind of duct pieces of shield tunnel seam elastic sealing gasket, including the sealing gasket being arranged on tunnel duct piece seam crossing, the cross section of described sealing gasket is about setting substantially symmetrical about its central axis, described sealing gasket one end is sealing gasket joining contacting surface, the other end is pipe face contact surface, described sealing gasket is provided with the first groove for placing water swelling rubber and the second groove, described first groove is arranged in sealing gasket joining contacting surface and the trapezoidal setting of cross section, and described second groove is arranged at the first groove both sides along its length.
nullIt is arranged such，Elastic sealing gasket is when assembling，Can use Suporting structure that sealing gasket is depressed into closure state，Being symmetrical arranged sealing gasket can make sealing gasket can extend to the periphery uniformly compression when，Conflicted with pipe face by sealing gasket one end，The other end is inconsistent with the sealing gasket of adjacent confuser，The first groove and the second groove placing water swelling rubber is set on the face by the sealing gasket inconsistent at two，At pipeline joint-seam during water inlet，Water-expansible rubber water-swellable，Make that the sealing gasket that it is adjacent contacts is tightr，Due to the trapezoidal setting of the cross section of the first groove，Water swelling rubber water-swellable，The notch making the first groove forms the form of a snap ring，Can make what water-expansible rubber fastened to be installed in the first groove，Second groove can make water swelling rubber form exceptionally straight state in sealing gasket joining contacting surface，Prevent water swelling rubber generation crimping or overlap，Cause sealing the tightst，Make water swelling rubber tightr with what sealing gasket was fitted by the first groove and the second groove，To ensure the stability of section of jurisdiction concrete groove，Increase the sealing property at its pipeline joint-seam.
Arrange further: the pipe face contact surface of described sealing gasket arranges some notches, is provided with manhole between adjacent described notch.
It is arranged such, the pipe face contact surface of sealing gasket arranges notch and manhole interval is arranged, deformation is produced the when that confuser can being made to connect, its assembly force is made to reduce, make the elastic performance of sealing gasket good should be provided simultaneously with the performance that assembly force corresponding under the conditions of closure state is less, to ensure the stability of section of jurisdiction concrete groove, reduce the requirement to Suporting structure assembly ability simultaneously, increase the sealing property at its pipeline joint-seam.
Arrange further: between described sealing gasket joining contacting surface and pipe face contact surface, be transversely provided with several first through holes.
Arrange further: be transversely provided with several second through holes, described second through hole and the dislocation of the first through hole between described sealing gasket joining contacting surface and the first through hole and arrange.
It is arranged such, sealing gasket can be made pipeline joint-seam when to produce deformation, its assembly force is made to reduce, make the elastic performance of sealing gasket good should be provided simultaneously with the performance that assembly force corresponding under the conditions of closure state is less, to ensure the stability of section of jurisdiction concrete groove, reduce the requirement to Suporting structure assembly ability simultaneously.
Arrange further: described first through hole and the second through hole are rhombus, and each angle of rhombus is respectively provided with fillet.
Being arranged such, the when of producing certain deformation of sealing gasket compression, fillet can make stress be disperseed, and the bending reducing corner angle is impaired, improves the service life of its sealing gasket.
Arrange further: the width of described sealing gasket is 6-8 times of the openings of sizes of the first groove, and the width of described sealing gasket is 4-6 times of the slot bottom width of the first groove.
It is arranged such, can make water-expansible rubber imbibition when inside the groove being arranged at the first groove that water-expansible rubber fastens.
Arrange further: the thickness of described sealing gasket is the first groove shrinkage pool between bottom land 4-6 times of the degree of depth.
It is arranged such, sealing gasket and the ratio of the first groove is reasonably set, its sealing effectiveness can be improved.
As preferably, described sealing gasket is water swelling rubber.
Being arranged such, water swelling rubber can resist heat, light, oxygen, is substantially non-polar, polar solvent and chemicals are had resistance, and water absorption rate is low, has good insulation characterisitic so that it is obturation effect is more preferably.
By using technique scheme, the utility model hinge structure is compared: at pipeline joint-seam during water inlet, water-expansible rubber water-swellable, make what water-expansible rubber fastened to be installed in the first groove and the second groove, the pipe face contact surface of sealing gasket arranges notch and manhole interval is arranged, deformation is produced the when that confuser can being made to connect, its assembly force is made to reduce, the elastic performance making sealing gasket is good, also the performance that assembly force corresponding under the conditions of closure state is less it is provided simultaneously with, to ensure the stability of section of jurisdiction concrete groove, reduce the requirement to Suporting structure assembly ability simultaneously, increase the sealing property at its pipeline joint-seam.
Accompanying drawing explanation
Fig. 1 is the front view of embodiment one；
Fig. 2 is the sealing gasket sectional view of embodiment one；
Fig. 3 is the sealing gasket cooperation figure of embodiment one；
Fig. 4 is the sealing gasket sectional view of embodiment two.
In figure: 1, tunnel duct piece；2, sealing gasket；21, sealing gasket joining contacting surface；22, pipe face contact surface；3, the first groove；31, shrinkage pool；32, bottom land；4, the second groove；5, notch；6, manhole；7, the first through hole；8, the second through hole；9, water swelling rubber.
Detailed description of the invention
Referring to figs. 1 through Fig. 4, duct pieces of shield tunnel seam elastic sealing gasket is described further.
Embodiment one
As shown in Figure 1 to Figure 3, a kind of duct pieces of shield tunnel seam elastic sealing gasket, including the sealing gasket 2 being arranged on tunnel duct piece 1 seam crossing, the cross section of described sealing gasket 2 is about setting substantially symmetrical about its central axis, described sealing gasket 2 one end is sealing gasket joining contacting surface 21, the other end is pipe face contact surface 22, described sealing gasket 2 is provided with the first groove 3 and the second groove 4 for placing water swelling rubber 9, described first groove 3 is arranged in sealing gasket joining contacting surface 21 and the trapezoidal setting of cross section, and described second groove 4 is arranged at the first groove 3 both sides along its length.
nullWhen tunnel duct piece 1 is spliced by Suporting structure，The elastic sealing gasket 2 of tunnel duct piece 1 joint face is protruded from by use，The sealing gasket 2 making tunnel duct piece 1 seam crossing is depressed into closure state，Being symmetrical arranged sealing gasket 2 can make sealing gasket 2 can extend to the periphery uniformly compression when，Conflicted with pipe face by sealing gasket 2 one end，The other end is inconsistent with the sealing gasket 2 of adjacent tunnel pipelines sheet，The face of sealing gasket 2 arranges the first groove 3 and the second groove 4 placing water swelling rubber 9，First groove 3 is arranged in sealing gasket joining contacting surface 21 and the trapezoidal setting of cross section，At pipeline joint-seam during water inlet，Water swelling rubber 9 water-swellable，The notch 5 making the first groove 3 forms the form of a snap ring，Make what water swelling rubber 9 fastened to be clamped in the first groove 3，Second groove 4 is arranged at the first groove 3 both sides along its length，And the depth direction of grooves on two sides points to the vertical plane of sealing gasket 2，Second groove 4 can make water swelling rubber 9 form exceptionally straight straight and even in sealing gasket joining contacting surface 21，Increase the sealing property at its pipeline joint-seam.
The pipe face contact surface 22 of described sealing gasket 2 arranges some notches 5, and some described notches 5 are symmetricly set in the central shaft both sides of the cross section of sealing gasket 2, are provided with manhole 6 between adjacent described notch 5；The pipe face contact surface 22 of sealing gasket 2 arranges notch 5 and manhole 6 interval is arranged, described notch 5 is preferably arranged to inverted U-shaped, quantity is 4, it is provided with manhole 6 between adjacent U-lag mouth 5, described through hole number is 3, when tunnel duct piece 1 loads, it is arranged such and contributes to the sealing gasket 2 that tunnel pipelines sheet seam goes out and produce deformation, its assembly force is made to reduce, make the elastic performance of sealing gasket 2 good should be provided simultaneously with the performance that assembly force corresponding under the conditions of closure state is less, to ensure the stability of section of jurisdiction concrete groove, reduce the requirement to Suporting structure assembly ability simultaneously, increase the sealing property at its pipeline joint-seam.
nullSeveral first through holes 7 it are transversely provided with between described sealing gasket joining contacting surface 21 and pipe face contact surface 22，Preferably 5，Described first through hole 7 is rhombus，And corner angle each be fillet be set，The width of described sealing gasket 2 is 6-8 times of shrinkage pool 31 openings of sizes of the first groove 3，Preferably 7 times，The width of described sealing gasket 2 is 4-6 times of bottom land 32 width of the first groove 3，Preferably 5 times，The thickness of sealing gasket 2 is 4-6 times of first groove 3 degree of depth，Preferably 5 times，By being preferably provided with sealing gasket 2，Make sealing gasket 2 to be made to produce deformation when of tunnel duct piece 1 seam，Arranging of fillet can make stress be disperseed，Its assembly force is made to reduce，The bending reducing corner angle is impaired，Improve the service life of its sealing gasket 2，In the elastic performance superperformance improving sealing gasket 2，Also the performance that assembly force corresponding under the conditions of closure state is less it is provided simultaneously with，To ensure the stability of section of jurisdiction concrete groove，Reduce the requirement to Suporting structure assembly ability simultaneously，Can make water-expansible rubber imbibition when inside the groove being arranged at the first groove 3 that water-expansible rubber fastens.
Preferably sealing gasket 2 is water swelling rubber, and it has can resist heat, light, and oxygen is substantially non-polar, polar solvent and chemicals are had resistance, and water absorption rate is low, has good insulation characterisitic so that it is obturation effect is more preferably.
Embodiment two
As shown in Figure 4, identical with embodiment one principle, difference is pointed out to be between described sealing gasket joining contacting surface 21 and the first through hole 7 to be transversely provided with the second through hole 8, described second through hole 8 is arranged at the top between adjacent two the first through holes 7, described second through hole 8 is the prismatic of several roundings, it is preferably arranged to 4, and ancipiral area is less than the area of the first shape, sealing gasket 2 is made to have good compression performance and sealing property, in the elastic performance superperformance improving sealing gasket 2, also the performance that assembly force corresponding under the conditions of closure state is less it is provided simultaneously with, to ensure the stability of section of jurisdiction concrete groove, reduce the requirement to Suporting structure assembly ability simultaneously.
By using technique scheme, the utility model hinge structure is compared: when tunnel duct piece 1 seam crossing is intake, water swelling rubber 9 water-swellable, gradually expanded along depth direction by the shrinkage pool 31 of the first groove 3, the notch 5 making the first groove 3 forms the form of a snap ring, can make what water-expansible rubber fastened to be installed in the first groove 3, the pipe face contact surface 22 of sealing gasket 2 arranges notch 5 and manhole 6 interval is arranged, deformation is produced the when that confuser can being made to connect, its assembly force is made to reduce, the elastic performance making sealing gasket 2 is good, also the performance that assembly force corresponding under the conditions of closure state is less it is provided simultaneously with, to ensure the stability of section of jurisdiction concrete groove, reduce the requirement to Suporting structure assembly ability simultaneously, increase the sealing property at its pipeline joint-seam.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is not limited merely to above-described embodiment, and all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.It should be pointed out that, for those skilled in the art, without departing from the some improvements and modifications under the utility model principle premise, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. a duct pieces of shield tunnel seam elastic sealing gasket, including the sealing gasket (2) being arranged on tunnel duct piece (1) seam crossing, the cross section of described sealing gasket (2) is about setting substantially symmetrical about its central axis, described sealing gasket (2) one end is sealing gasket joining contacting surface (21), the other end is pipe face contact surface (22), it is characterized in that: described sealing gasket (2) is provided with the first groove (3) for placing water swelling rubber (9) and the second groove (4), described first groove (3) is arranged in sealing gasket joining contacting surface (21) and the trapezoidal setting of cross section, described second groove (4) is arranged at the first groove (3) both sides along its length.
Duct pieces of shield tunnel seam elastic sealing gasket the most according to claim 1, it is characterised in that: pipe face contact surface (22) of described sealing gasket (2) arranges some notches (5), is provided with manhole (6) between adjacent described notch (5).
Duct pieces of shield tunnel seam elastic sealing gasket the most according to claim 1, it is characterised in that: it is transversely provided with several first through holes (7) between described sealing gasket joining contacting surface (21) and pipe face contact surface (22).
Duct pieces of shield tunnel seam elastic sealing gasket the most according to claim 3, it is characterized in that: be transversely provided with several second through holes (8) between described sealing gasket joining contacting surface (21) and the first through hole (7), described second through hole (8) is arranged with the first through hole (7) dislocation.
Duct pieces of shield tunnel seam elastic sealing gasket the most according to claim 4, it is characterised in that: described first through hole (7) and the second through hole (8) are rhombus, and each angle of rhombus is respectively provided with fillet.
Duct pieces of shield tunnel seam elastic sealing gasket the most according to claim 1, it is characterized in that: the width of described sealing gasket (2) is 6-8 times of shrinkage pool (31) openings of sizes of the first groove (3), the width of described sealing gasket (2) is 4-6 times of bottom land (32) width of the first groove (3).
Duct pieces of shield tunnel seam elastic sealing gasket the most according to claim 6, it is characterised in that: the thickness of described sealing gasket (2) is the first groove (3) shrinkage pool (31) between bottom land (32) 4-6 times of the degree of depth.
Duct pieces of shield tunnel seam elastic sealing gasket the most according to claim 1, it is characterised in that: described sealing gasket (2) is water swelling rubber (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620083260.4U CN205532640U (en) | 2016-01-28 | 2016-01-28 | Elastic sealing pad for sealing seams among shield tunnel pipe segments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620083260.4U CN205532640U (en) | 2016-01-28 | 2016-01-28 | Elastic sealing pad for sealing seams among shield tunnel pipe segments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205532640U true CN205532640U (en) | 2016-08-31 |
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ID=56771344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620083260.4U Expired - Fee Related CN205532640U (en) | 2016-01-28 | 2016-01-28 | Elastic sealing pad for sealing seams among shield tunnel pipe segments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205532640U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697038A (en) * | 2016-03-04 | 2016-06-22 | 同济大学 | Anti-skid waterproof sealing gasket for duct piece top sealing sheet of fabricated shield tunnel |
| CN106285729A (en) * | 2016-10-27 | 2017-01-04 | 中国石油天然气集团公司 | A kind of waterproof method for high hydraulic pressure light section shield tunnel seam |
| CN106437788A (en) * | 2016-11-16 | 2017-02-22 | 中铁二院工程集团有限责任公司 | Active compaction device for elastic sealing pad for shield tunnel segment |
| CN106437787A (en) * | 2016-10-27 | 2017-02-22 | 中国石油天然气集团公司 | Waterproof method for small-section shield tunnel under high seismic intensity and high water pressure |
| CN106593492A (en) * | 2016-12-19 | 2017-04-26 | 同济大学 | Waterproof elastic sealing gasket for deep water draining shield tunnel segment seam |
| CN107366544A (en) * | 2017-08-03 | 2017-11-21 | 华东交通大学 | A kind of piston type particle damping energy dissipation vibration damping subway segment |
| CN110159318A (en) * | 2019-05-30 | 2019-08-23 | 东北大学 | A kind of shield tunnel composite water-proof structure |
| CN110397456A (en) * | 2019-07-18 | 2019-11-01 | 中交第二公路勘察设计研究院有限公司 | A kind of seam waterproof sealing structure for adapting to duct pieces of shield tunnel and opening or misplacing |
-
2016
- 2016-01-28 CN CN201620083260.4U patent/CN205532640U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697038A (en) * | 2016-03-04 | 2016-06-22 | 同济大学 | Anti-skid waterproof sealing gasket for duct piece top sealing sheet of fabricated shield tunnel |
| CN105697038B (en) * | 2016-03-04 | 2018-06-05 | 同济大学 | Assembled duct pieces of shield tunnel binds block anti-skid and waterproof gasket |
| CN106285729A (en) * | 2016-10-27 | 2017-01-04 | 中国石油天然气集团公司 | A kind of waterproof method for high hydraulic pressure light section shield tunnel seam |
| CN106437787A (en) * | 2016-10-27 | 2017-02-22 | 中国石油天然气集团公司 | Waterproof method for small-section shield tunnel under high seismic intensity and high water pressure |
| CN106437787B (en) * | 2016-10-27 | 2018-08-14 | 中国石油天然气集团公司 | Waterproof method for the light section shield tunnel under the high hydraulic pressure of high earthquake intensity |
| CN106437788A (en) * | 2016-11-16 | 2017-02-22 | 中铁二院工程集团有限责任公司 | Active compaction device for elastic sealing pad for shield tunnel segment |
| CN106437788B (en) * | 2016-11-16 | 2018-11-23 | 中铁二院工程集团有限责任公司 | A kind of duct pieces of shield tunnel elastic sealing gasket active densifier |
| CN106593492A (en) * | 2016-12-19 | 2017-04-26 | 同济大学 | Waterproof elastic sealing gasket for deep water draining shield tunnel segment seam |
| CN107366544A (en) * | 2017-08-03 | 2017-11-21 | 华东交通大学 | A kind of piston type particle damping energy dissipation vibration damping subway segment |
| CN110159318A (en) * | 2019-05-30 | 2019-08-23 | 东北大学 | A kind of shield tunnel composite water-proof structure |
| CN110159318B (en) * | 2019-05-30 | 2020-10-23 | 东北大学 | Shield tunnel composite waterproof structure |
| CN110397456A (en) * | 2019-07-18 | 2019-11-01 | 中交第二公路勘察设计研究院有限公司 | A kind of seam waterproof sealing structure for adapting to duct pieces of shield tunnel and opening or misplacing |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20220128 |